METHOD OF SCALING VOLTAGE-FREQUENCY, APPLICATION PROCESSOR, AND MOBILE DEVICE HAVING THE SAME

摘要

The dynamic voltage scaling method is capable of controlling a clock management unit to predict the operation status of the central processing unit to provide the operation frequency data representing the increase or decrease of the operation frequency of an application processor to an integrated power management circuit, and controlling the integrated power management circuit to alter the operation frequency of the application processor based on the operation frequency data provided from the clock management unit. [Reference numerals] (AA) Start; (BB) End; (S120) Clock management unit predicts the operation status of the central processing unit and provides the operation frequency data to an integrated power management circuit based on the predicted operation status; (S140) Integrated power management circuit changes the dynamic voltage of an application processor based on the operation frequency data